Home / 279,108,068.83-385,162,094.99-153,659,012.68

Finding the Fourth Proportional to 279,108,068.83, 385,162,094.99 and 153,659,012.68

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Solution

The fourth proportional to 279,108,068.83, 385,162,094.99 and 153,659,012.68 is: 212,045,561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,108,068.83 : 385,162,094.99 = 153,659,012.68 : x
  2. Step 2: Convert to fraction form
    279,108,068.83/385,162,094.99 = 153,659,012.68/x
  3. Step 3: Cross multiply
    279,108,068.83x = 385,162,094.99 × 153,659,012.68
  4. Step 4: Simplify right side
    279,108,068.83x = 59,183,627,238,789,376
  5. Step 5: Solve for x
    x = 59,183,627,238,789,376/279,108,068.83
  6. Step 6: Final answer
    x = 212,045,561.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.